VOCs waste gas treatment and purification device

Abstract

The utility model relates to the technical field of waste gas treatment, and discloses a VOCs waste gas treatment and purification device which solves the problem that an existing waste gas purification device is incomplete in treatment and comprises an absorption tank and an activated carbon adsorption box, a gas inlet pipe is arranged at the bottom end of one side of the absorption tank in a penetrating mode, and the absorption tank and the activated carbon adsorption box are connected through a gas guide pipe. An absorption and purification mechanism is arranged in the absorption tank in a penetrating mode, an adsorption mechanism is arranged in the activated carbon adsorption box, an exhaust pipe is arranged at the top end of the activated carbon adsorption box in a penetrating mode, and the absorption and purification mechanism is composed of a plurality of absorption assemblies, a liquid supply pipe, a plurality of liquid inlet pipes and a flow guide cotton strip; the liquid supply pipe is connected to the outer side edge of the absorption tank, the liquid inlet pipe is connected between the absorption assembly and the liquid supply pipe and penetrates through the absorption tank, and the flow guide cotton strip is connected to the center of the absorption assembly in a penetrating mode. Through the purification device, absorption purification and adsorption purification can be realized, and the comprehensiveness of waste gas treatment is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas treatment, and specifically relates to a VOCs waste gas treatment and purification device. Background Art

[0002] VOCs waste gas refers to the waste gas containing low-content volatile organic compounds discharged during industrial production. Due to its strong volatility, diffusibility and chemical toxicity, once discharged into the atmosphere, it will seriously pollute the environment and threaten people's physical health. Therefore, various feasible means should be taken to purify and remove it.

[0003] At present, the main methods for purifying VOCs waste gas include combustion, catalytic incineration, activated carbon adsorption, wet absorption, condensation, photo-oxidation and biological treatment, etc. Among them, absorption and adsorption are relatively mainstream purification methods. The existing absorption purification methods are generally carried out through spraying, so that the sprayed purification liquid contacts the waste gas to achieve purification treatment. However, there are disadvantages of insufficient and incomplete contact, which will cause some waste gas to be discharged without sufficient reaction, and the use effect is not good. Therefore, this application proposes a VOCs waste gas treatment and purification device. Summary of the Utility Model

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a VOCs waste gas treatment and purification device, which effectively solves the problem of incomplete treatment of the existing waste gas purification device.

[0005] To achieve the above object, the utility model provides the following technical solution: A VOCs waste gas treatment and purification device, including an absorption tank and an activated carbon adsorption box. The bottom end of one side of the absorption tank is inserted with an air inlet pipe. The absorption tank and the activated carbon adsorption box are connected by a guide pipe. An absorption and purification mechanism is inserted inside the absorption tank, and an adsorption mechanism is arranged inside the activated carbon adsorption box. The top end of the activated carbon adsorption box is inserted with an exhaust pipe. The absorption and purification mechanism is composed of several absorption components, a liquid supply pipe, several liquid inlet pipes and a guide cotton strip. The absorption components are fixedly connected to the inner surface of the absorption tank and are arranged in sequence from top to bottom. The liquid supply pipe is fixedly connected to the outer side of the absorption tank. The liquid inlet pipe is connected between the absorption component and the liquid supply pipe and is inserted into the absorption tank. The guide cotton strip is inserted and connected to the central position of the absorption component.

[0006] Preferably, several limit traction cotton strips are fixedly arranged at the bottom end of the guide cotton strip, and the bottom ends of the limit traction cotton strips are fixedly connected to the inner wall of the absorption tank.

[0007] Preferably, the absorption component is composed of a circular tube and a breathable cloth. The circular tube is connected to the liquid inlet pipe. The breathable cloth is connected to the bottom end of the circular tube. Several liquid discharge ports are fixedly arranged at the side of the bottom end of the circular tube. The breathable cloth is connected to the guide cotton strip.

[0008] Preferably, an overflow pipe is inserted through the bottom end of one side of the absorption tank.

[0009] Preferably, a plurality of intake branch pipes fixedly connected to the intake pipe are fixedly arranged at the bottom end inside the absorption tank, and a porous aeration disc is fixedly arranged at the bottom end of the intake branch pipe.

[0010] Preferably, a desorption discharge pipe is fixedly arranged at the bottom end of the activated carbon adsorption box, and a valve is arranged on the desorption discharge pipe.

[0011] Preferably, the adsorption mechanism is composed of a support frame, a plurality of support partition plates and a sealing plate. The support frame is connected to the inside of the activated carbon adsorption box. The sealing plate is fixedly connected to one side of the top end of the support frame and is connected to the inner side wall of the activated carbon adsorption box. The support partition plates are fixedly connected to the inside of the support frame. A plurality of adsorption chambers are formed between the support partition plates and the support frame. A plurality of diversion inclined plates are fixedly arranged inside the adsorption chambers. Activated carbon is filled inside the adsorption chambers. A plurality of intake holes are arranged on one side of the support frame, and a plurality of exhaust holes are arranged on the other side of the support frame.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] (1) During operation, by providing an absorption tank and an absorption and purification mechanism composed of a plurality of absorption components, a liquid supply pipe, a plurality of liquid inlet pipes and a guide cotton strip, the comprehensiveness and sufficiency of the contact between the waste gas and the purification liquid can be improved. During the purification process, the slow replacement of the purification liquid can be realized, thereby improving the purification effect, and the purification liquid discharged to the bottom end inside the absorption tank can be pre-treated;

[0014] (2) By providing an adsorption mechanism composed of a support frame, a plurality of support partition plates and a sealing plate, and providing an adsorption chamber, a diversion inclined plate, activated carbon, an intake hole and an exhaust hole, activated carbon adsorption treatment can be realized, and the comprehensiveness of the adsorption treatment can be improved, further improving the effect of waste gas treatment and preventing harmful waste gas from being discharged into the atmosphere. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model.

[0016] In the drawings:

[0017] Figure 1 is a schematic structural diagram of the VOCs waste gas treatment and purification device of the present utility model;

[0018] Figure 2 is a schematic internal structural diagram of the VOCs waste gas treatment and purification device of the present utility model;

[0019] Figure 3 Structural schematic diagram of the absorption and purification mechanism of the present utility model;

[0020] Figure 4 Structural schematic diagram of the absorption component of the present utility model;

[0021] Figure 5 Structural schematic diagram of the adsorption mechanism of the present utility model;

[0022] In the figure: 1, absorption tank; 2, activated carbon adsorption box; 3, intake pipe; 4, guide pipe; 5, absorption and purification mechanism; 6, adsorption mechanism; 7, exhaust pipe; 8, absorption component; 9, liquid supply pipe; 10, liquid inlet pipe; 11, guide cotton strip; 12, limit traction cotton strip; 13, circular pipe; 14, breathable cloth; 15, liquid discharge port; 16, overflow pipe; 17, intake branch pipe; 18, porous aeration disc; 19, desorption discharge pipe; 20, valve; 21, support frame; 22, support partition; 23, sealing plate; 24, adsorption chamber; 25, diversion inclined plate; 26, intake hole; 27, exhaust hole. Specific implementation manners

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments; based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0024] From Figures 1 to 4Provided is a VOCs waste gas treatment and purification device of the present utility model, which includes an absorption tank 1 and an activated carbon adsorption box 2. An air inlet pipe 3 is inserted through the bottom end of one side of the absorption tank 1. The absorption tank 1 and the activated carbon adsorption box 2 are connected by a guide pipe 4. An absorption and purification mechanism 5 is inserted inside the absorption tank 1. An adsorption mechanism 6 is arranged inside the activated carbon adsorption box 2. An exhaust pipe 7 is inserted through the top end of the activated carbon adsorption box 2. The absorption and purification mechanism 5 is composed of a plurality of absorption components 8, a liquid supply pipe 9, a plurality of liquid inlet pipes 10 and a guide cotton strip 11. The absorption components 8 are fixedly connected to the inner surface of the absorption tank 1 and are arranged in sequence from top to bottom. The liquid supply pipe 9 is fixedly connected to the outer side of the absorption tank 1. The liquid inlet pipes 10 are connected between the absorption components 8 and the liquid supply pipe 9 and are inserted through the absorption tank 1. The guide cotton strip 11 is inserted and connected to the central position of the absorption components 8. A plurality of limiting traction cotton strips 12 are fixedly arranged at the bottom end of the guide cotton strip 11. The bottom end of the limiting traction cotton strip 12 is fixedly connected to the inner wall of the absorption tank 1. The absorption component 8 is composed of an annular pipe 13 and a breathable cloth 14. The annular pipe 13 is connected to the liquid inlet pipe 10. The breathable cloth 14 is connected to the bottom end of the annular pipe 13. A plurality of liquid discharge ports 15 are fixedly arranged at the side of the bottom end of the annular pipe 13. The breathable cloth 14 is connected to the guide cotton strip 11. An overflow pipe 16 is inserted through the bottom end of one side of the absorption tank 1;

[0025] During use, a purification liquid is supplied through the liquid supply pipe 9. The purification liquid enters the inside of a plurality of annular pipes 13 through the liquid inlet pipes 10, and then is discharged to the inside of the breathable cloth 14 through the liquid discharge ports 15, so that the whole breathable cloth 14 is filled with the purification liquid. The waste gas then enters the inside of the absorption tank 1 along the air inlet pipe 3. At this time, pretreatment is realized through the purification liquid accumulated at the bottom end inside the absorption tank 1. After pretreatment, the waste gas penetrates through a plurality of breathable cloths 14 in sequence. The breathable cloth 14 can disperse the waste gas further, improve the comprehensiveness of the contact between the waste gas and the purification liquid, and thus improve the purification effect. The overflow pipe 16 can discharge the purification liquid, so as to maintain the purification liquid inside the absorption tank 1 in a constant state;

[0026] Provided by Figure 1 and Figure 2 At the bottom end inside the absorption tank 1, a plurality of air inlet branch pipes 17 fixedly connected to the air inlet pipe 3 are fixedly arranged. A porous aeration disc 18 is fixedly arranged at the bottom end of the air inlet branch pipe 17;

[0027] The porous aeration disc 18 can disperse the waste gas, improve the comprehensiveness of the contact between the waste gas and the purification liquid, and thus improve the pretreatment effect;

[0028] Provided by Figure 1 , Figure 2 and Figure 5Given that a desorption discharge pipe 19 is fixedly arranged at the bottom end of the activated carbon adsorption box 2, a valve 20 is arranged on the desorption discharge pipe 19. The adsorption mechanism 6 is composed of a support frame 21, a plurality of support partition plates 22 and a sealing plate 23. The support frame 21 is connected to the inside of the activated carbon adsorption box 2. The sealing plate 23 is fixedly connected to one side of the top end of the support frame 21 and is connected to the inner side wall of the activated carbon adsorption box 2. The support partition plates 22 are fixedly connected to the inside of the support frame 21. A plurality of adsorption chambers 24 are formed between the support partition plates 22 and the support frame 21. A plurality of flow guiding inclined plates 25 are fixedly arranged inside the adsorption chambers 24. Activated carbon is filled inside the adsorption chambers 24. A plurality of air inlet holes 26 are arranged on one side of the support frame 21. A plurality of exhaust holes 27 are arranged on the other side of the support frame 21;

[0029] The waste gas after absorption treatment enters the inside of the activated carbon adsorption box 2, then enters the inside of the support frame 21 through the air inlet holes 26, and flows along the plurality of adsorption chambers 24. Adsorption treatment is realized through the activated carbon. The flow guiding inclined plates 25 can be used to guide the waste gas, extend the flow path of the waste gas, and improve the comprehensiveness of adsorption. Finally, it is discharged through the exhaust holes 27.

[0030] During operation, by providing an absorption tank and an absorption and purification mechanism composed of a plurality of absorption components, a liquid supply pipe, a plurality of liquid inlet pipes and a guide cotton strip, the comprehensiveness and sufficiency of the contact between the waste gas and the purification liquid can be improved. During the purification process, the slow replacement of the purification liquid is realized, thereby improving the purification effect, and the purification liquid discharged to the bottom end inside the absorption tank can be used for pretreatment; by providing an adsorption mechanism composed of a support frame, a plurality of support partition plates and a sealing plate, and providing an adsorption chamber, a flow guiding inclined plate, activated carbon, an air inlet hole and an exhaust hole, activated carbon adsorption treatment can be realized, and the comprehensiveness of the adsorption treatment can be improved, further improving the treatment effect of the waste gas and preventing harmful waste gas from being discharged into the atmosphere.

Claims

1. A VOCs waste gas treatment and purification device, comprising an absorption tank (1) and an activated carbon adsorption box (2), characterized in that: An air inlet pipe (3) is inserted through the bottom end of one side of the absorption tank (1). The absorption tank (1) and the activated carbon adsorption box (2) are connected by a gas guide pipe (4). An absorption and purification mechanism (5) is inserted inside the absorption tank (1). An adsorption mechanism (6) is arranged inside the activated carbon adsorption box (2). An exhaust pipe (7) is inserted through the top end of the activated carbon adsorption box (2). The absorption and purification mechanism (5) is composed of a plurality of absorption components (8), a liquid supply pipe (9), a plurality of liquid inlet pipes (10) and a flow guiding cotton strip (11). The absorption components (8) are fixedly connected to the inner surface of the absorption tank (1) and are arranged in sequence from top to bottom. The liquid supply pipe (9) is fixedly connected to the outer side of the absorption tank (1). The liquid inlet pipe (10) is connected between the absorption component (8) and the liquid supply pipe (9) and is inserted through the absorption tank (1). The flow guiding cotton strip (11) is inserted and connected to the central position of the absorption component (8).

2. The VOCs waste gas treatment and purification device according to claim 1, characterized in that: A plurality of limiting and traction cotton strips (12) are fixedly arranged at the bottom end of the flow guiding cotton strip (11). The bottom end of the limiting and traction cotton strip (12) is fixedly connected to the inner wall of the absorption tank (1).

3. The VOCs waste gas treatment and purification device according to claim 1, characterized in that: The absorption component (8) is composed of a circular pipe (13) and a breathable cloth (14). The circular pipe (13) is connected to the liquid inlet pipe (10). The breathable cloth (14) is connected to the bottom end of the circular pipe (13). A plurality of liquid discharge ports (15) are fixedly arranged at the side of the bottom end of the circular pipe (13). The breathable cloth (14) is connected to the flow guiding cotton strip (11).

4. A VOCs waste gas treatment and purification device according to claim 1, characterized in that: An overflow pipe (16) is inserted through the bottom end of one side of the absorption tank (1).

5. A VOCs waste gas treatment and purification device according to claim 1, characterized in that: A plurality of air inlet branch pipes (17) fixedly connected to the air inlet pipe (3) are fixedly arranged at the bottom end inside the absorption tank (1). A porous aeration disc (18) is fixedly arranged at the bottom end of the air inlet branch pipe (17).

6. The VOCs waste gas treatment and purification device according to claim 1, characterized in that: A desorption discharge pipe (19) is fixedly arranged at the bottom end of the activated carbon adsorption box (2). A valve (20) is arranged on the desorption discharge pipe (19).

7. An apparatus for treating and purifying VOCs waste gas according to claim 1, characterized in that: The adsorption mechanism (6) is composed of a support frame (21), a plurality of support partition plates (22) and a sealing plate (23). The support frame (21) is connected to the inside of the activated carbon adsorption box (2). The sealing plate (23) is fixedly connected to one side of the top end of the support frame (21) and is connected to the inner side wall of the activated carbon adsorption box (2). The support partition plates (22) are fixedly connected to the inside of the support frame (21). A plurality of adsorption chambers (24) are formed between the support partition plates (22) and the support frame (21). A plurality of flow guiding inclined plates (25) are fixedly arranged inside the adsorption chambers (24). Activated carbon is filled inside the adsorption chambers (24). A plurality of air inlet holes (26) are arranged on one side of the support frame (21). A plurality of exhaust holes (27) are arranged on the other side of the support frame (21).

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